Hot water plant has several synonyms such as geothermal plant, thermal power plant, and geothermal power station. These plants utilize the heat energy that is generated from the earth's core to produce electricity. They are built in areas that have high geothermal gradients such as the Pacific Ring of Fire. Geothermal plants use this heat energy to operate steam turbines and generate electricity. The thermal power plant obtains its heat energy from the combustion of fossil fuels such as coal, oil, and natural gas. It then converts heat into electrical energy. Whether it is a hot water plant, geothermal plant, thermal power plant, or geothermal power station, all of them serve the same purpose of producing electricity by harnessing the earth's natural resources.